KOYO BEARING

KOYO tapered roller bearings LM778549D/510/510D

KOYO Double-row tapered roller bearings。

The TDI type bearing is made up of two single-row outer rings and one double inner ring, and is generally provided with an outer ring spacer.

The bearing with outer ring spacer is handy for mounting, as its end play has been pre-adjusted for each application.

  • The spacer is provided with an lubrication groove and several lubrication holes.
  • Used for roll neck of medium-duty rolling mills, speed reducers, etc.
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KOYO Double-row tapered roller bearings

Various part numbers in stock, welcome inquiry. Fast shipment within 2-3 working days. 

Boundary dimensions

d                          D                         T                         W                   r              r1

mm        1/25.4        mm       1/25.4         mm       1/25.4         mm       1/25.4        min.           min.

 

Bearing No. 1)

 

Design

 

da     max.

(Refer.)

Mass

(kg)

558.800 22.0000 22.0000

22.0000

22.0000 22.0000

22.0000

736.600 736.600 736.600

736.600 736.600 736.600

29.0000 29.0000

29.0000

29.0000 29.0000

29.0000

322.263 409.575 409.575

430.000 450.000 457.200

12.6875 16.1250

16.1250

16.9291 17.7165

18.0000

322.263 409.575 409.575

430.000 450.000 455.612

12.6875 16.1250

16.1250

16.9291 17.7165

17.9375

6.4

6.4

6.4

6.4

4

6.4

3.2

3.2

3.2

3.2

3

3.2

EE843221D/290/291D  4TR559J

4TR559N

4TR559

4TR559A

LM277149DA/110/110D

1-P

1

1-P

1

1-P

1-P

607

598

594

593

594

595

371

463

477

497

525

521

560

805

920

 

 

590

620

 

 

590

620

 

6

7.5

6

7.5

372/560

4TR560

1-P

1-P

614

643

1 000

1 650

570

780

810

 

515

590

 

515

590

5

5

2.5

2

4TR570A

4TR570C

1-P

1-P

618

625

737

1 000

571.500 22.5000 22.5000 812.800 812.800 32.0000

32.0000

593.725 593.725 23.3750

23.3750

593.725 593.725 23.3750

23.3750

6.4

6.4

3.2

3.2

4TR572

M278749D/710/710D

2-P

1-P

625

625

1 020

1 020

580 770   510   510   4 1.5 4TR580 1-P 618 671
584.200 23.0000 23.0000 730.250 762.000 28.7500

30.0000

349.250 401.638 13.7500

15.8125

342.900 396.875 13.5000

15.6250

3.2

6.4

1.6

3.2

4TR584

LM778549D/510/510D

1-P

1-P

613

617

326

468

585.788 23.0625 771.525 30.3750 479.425 18.8750 479.425 18.8750 6.4 3.2 LM278849D/810/810D 1-P 622 599
595.312 23.4375 844.550 33.2500 615.950 24.2500 615.950 24.2500 6.4 3.2 M280049D/010/010D 1-P 651 1 130
600 855   620   620   5 6 4TR600B 1-P 658 1 160
603.250 23.7500 857.250 33.7500 622.300 24.5000 622.300 24.5000 6.4 3.2 M280249D/210/210XD 1-P 652 1 170
609.600 24.0000 24.0000

24.0000

24.0000

787.400 787.400 813.562

817.400

31.0000 31.0000

32.0300

32.1811

361.950 361.950 479.425

361.950

14.2500 14.2500

18.8750

14.2500

361.950 361.950 479.425

361.950

14.2500 14.2500

18.8750

14.2500

6.4

6.4

6.4

6.4

3.2

3.2

3.2

3.2

4TR610A

EE649241D/310/311D  4TR609

4TR610

2-P

1-P

1-P

1-P

650

650

657

660

455

459

710

531

WHCD Bearing Co.,Ltd is professional bearing supplier, engaged in bearing business with more than eighteen years, export to worldwide countries, as America, European, Middle-East, Southeast Asia …etc. with plenty long-term cooperation customers. WHCD Bearing company will provide professional and prompt solution for customers.Original Quality and Warranted, and Bearing experts team support customer service. Various bearing types for customer choose:  

Bearing Types:
Self-aligning ball bearing
Cylindrical roller bearing
Spherical roller bearing
Tapered roller bearing
Angular contact ball
Needle roller
Deep groove ball bearing
Axial deep groove ball
Pillow block bearing and units
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